Problems

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Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 11720 1839 16% 0.00 2409 1271 53% 6.2
10 Kinds of People 27075 5502 20% 0.01 4667 3342 72% 5.3
2048 10716 4923 46% 0.00 4782 4077 85% 2.6
2, 4, 6, Greaaat 842 128 15% 0.15 101 42 42% 9.1
3D Printed Statues 14488 6647 46% 0.00 6247 5584 89% 2.2
3D Printer 998 163 16% 0.00 415 125 30% 8.9
3-Sided Dice 2925 237 8% 0.00 478 165 35% 8.7
4 thought 12712 4363 34% 0.00 4156 3502 84% 2.9
A1 Paper 6781 2042 30% 0.00 2028 1612 79% 3.8
Aa 142 103 73% 0.01 39 28 72% 6.3 - 7.6
Aaah! 36517 17078 47% 0.00 15373 14354 93% 1.5
Abandoned Animal 2649 584 22% 0.03 670 492 73% 5.4
ABC 20157 9119 45% 0.00 8668 7855 91% 1.9
Ab Initio 2139 344 16% 0.09 291 182 63% 7.5
Above Average 13091 5470 42% 0.00 5239 4715 90% 1.9
A+B Problem 9714 982 10% 0.03 1390 465 33% 8.1
A Brief Gerrymander 542 108 20% 0.11 102 49 48% 9.0
Abstract Art 468 155 33% 0.00 130 95 73% 6.0
Abstract Painting 1109 444 40% 0.00 398 323 81% 4.0
Absurdistan Roads II 706 238 34% 0.00 239 158 66% 7.0
Absurdistan Roads III 1804 515 29% 0.02 485 370 76% 5.6
Access Points 525 179 34% 0.01 169 132 78% 5.9
Accounting 1753 513 29% 0.01 469 330 70% 4.6
A Classy Problem 12918 3360 26% 0.01 2918 2273 78% 4.4
ACM Contest Scoring 8532 5339 63% 0.00 4766 4510 95% 1.5
Add 'Em Up! 2628 625 24% 0.01 652 467 72% 4.9
Adding Words 14519 3588 25% 0.00 3357 2627 78% 4.1
Add Two Numbers 4144 2816 68% 0.00 2646 2556 97% 1.3
A Different List Game 7509 524 7% 0.00 989 192 19% 9.3
A Different Problem 41327 15307 37% 0.00 13992 12127 87% 2.4
Adjoin the Networks 2718 698 26% 0.00 602 479 80% 5.7
Administrative Difficulties 1775 353 20% 0.03 373 254 68% 6.3
Ads 838 83 10% 0.00 160 58 36% 5.5
Advanced Causal Measurements 129 41 32% 0.10 42 32 76% 7.4
Adventure Begins 332 104 31% 0.06 110 83 75% 5.6
Adventures in Moving -- Part IV 1796 403 22% 0.00 347 285 82% 4.9
A Favourable Ending 1937 532 27% 0.00 496 387 78% 4.4
A Feast For Cats 3444 1302 38% 0.00 948 819 86% 3.4
A Flea on a Chessboard 999 210 21% 0.01 209 148 71% 5.3
A Horse Shoe-In 129 13 10% 0.27 21 9 43% 9.2
AI Jeopardy 600 80 13% 0.02 79 52 66% 6.3
Air Conditioned Minions 7105 2093 29% 0.00 2149 1662 77% 3.6
Airline Hub 2362 526 22% 0.01 471 282 60% 6.6
Airport Coffee 1313 267 20% 0.04 253 178 70% 6.8
Airport Construction 3801 473 12% 0.02 416 220 53% 7.8
Airport Logistics 71 19 27% 0.00 25 18 72% 6.9
Airports 571 168 29% 0.11 156 111 71% 6.5
Air Rally 76 0 0% -- 9 0 0% 8.4
Akcija 9861 4551 46% 0.00 4088 3660 90% 2.0
Aladin 875 100 11% 0.10 142 32 23% 8.7
Alchemy 175 34 19% 0.02 45 24 53% 8.9
Alchemy 101 588 185 31% 0.05 171 134 78% 3.9
Alea iacta est 45 16 36% 0.19 20 15 75% 6.6
Alehouse 819 348 42% 0.02 307 244 79% 4.6
Alex and Barb 1192 415 35% 0.00 480 375 78% 3.4
Alice in the Digital World 6099 1540 25% 0.01 1387 1097 79% 4.0
Alien Codebreaking 315 31 10% 3.23 57 16 28% 8.2
Alien Microwave 241 97 40% 0.00 126 93 74% 6.5
Alien Numbers 2970 1562 53% 0.00 1529 1400 92% 1.9
A List Game 10990 3337 30% 0.00 3211 2716 85% 3.0
All about that base 3339 1330 40% 0.00 1283 1086 85% 3.0
All Different Directions 1709 793 46% 0.00 752 672 89% 2.5
Allergy Test 647 164 25% 0.00 211 104 49% 8.0
All Friends 1165 220 19% 0.00 209 109 52% 8.8
All is Well 128 37 29% 0.03 35 30 86% 5.7
All Just A Dream 2721 712 26% 0.05 540 415 77% 5.4
All Kill 123 101 82% 0.00 57 50 88% 2.9
Alloys 872 317 36% 0.00 329 276 84% 3.9
All Pairs Shortest Path 13909 2678 19% 0.00 1688 1211 72% 5.8
Almost Perfect 13626 3053 22% 0.00 3113 2478 80% 3.2
Almost Union-Find 10209 1764 17% 0.02 1604 967 60% 6.2
Alphabet 2636 1353 51% 0.00 1290 1094 85% 3.1
Alphabet Animals 8277 1522 18% 0.00 1337 957 72% 6.7
Alphabet Spam 11007 6874 62% 0.00 5840 5619 96% 1.3
Alternating Current 704 686 97% 0.00 119 116 97% 1.3 - 8.1
Alternative Anagram 258 83 32% 0.00 74 55 74% 7.3
Alternative Bracket Notation 236 102 43% 0.00 111 91 82% 5.4
Alto Singing 85 36 42% 0.00 37 34 92% 4.7
Altruistic Amphibians 544 150 28% 0.22 124 92 74% 5.4
Amalgamated Artichokes 5124 2312 45% 0.01 2038 1800 88% 2.6
Amanda Lounges 1932 579 30% 0.03 490 399 81% 5.2
A Mazing! 3997 1036 26% 0.09 402 303 75% 5.5
Amazing Adventures 451 139 31% 0.02 154 112 73% 5.8
Amazing Race 594 148 25% 0.29 135 101 75% 5.6
Ambiguous Result 299 68 23% 0.02 100 63 63% 7.1
Amsterdam Distance 2252 1130 50% 0.00 1140 979 86% 2.5
A Multiplication Game 1282 527 41% 0.00 564 439 78% 4.2
Anagram Counting 4725 1899 40% 0.00 1823 1540 84% 2.8
Andrew the Ant 513 155 30% 0.05 164 127 77% 4.8
A New Adventure 1544 234 15% 0.00 228 164 72% 5.6
A New Alphabet 13954 6286 45% 0.00 5887 5410 92% 2.2
An I for an Eye 1292 374 29% 0.00 430 321 75% 4.8
Animal Classification 1681 395 23% 0.03 335 224 67% 6.8
An Industrial Spy 2420 1281 53% 0.02 1015 893 88% 2.8
Annoyed Coworkers 470 127 27% 0.03 103 87 84% 3.7
Another Brick in the Wall 4366 2234 51% 0.00 2171 1979 91% 2.1
Another Candies 10388 2907 28% 0.00 2928 2456 84% 2.7
Another Coin Weighing Puzzle 765 208 27% 0.00 146 117 80% 5.6
Another Dice Game 134 82 61% 0.00 82 69 84% 4.4
Another Query on Array Problem 2012 258 13% 0.05 393 178 45% 7.7